When you read a book that has already been compared by numerous other reviewers to Gone Girl and The Girl On The Train, there are certain expectations. One is that there will be a shock twist... and another is that at least one of the protagonists will turn out to be an unreliable narrator.
What makes The Girl Before unique is that just about everyone turns out to be an unreliable narrator. The book doesn't wait until the end to start revealing twists and turns in the story; they start coming from early on and don't stop until the book ends almost back in the place where it began.
There isn't an awful lot more I can say without getting hugely spoilery, but I can most certainly praise the author's powerfully descriptive writing, their talent for drawing with a few words a scene that seems incredibly real to the reader. I absolutely LOVED this book, and I'll definitely go to see the movie.
Five stars.
Disclaimer: I received an ARC of this book for review through NetGalley.